Alder Flycatcher

Alder Flycatcher Empidonax alnorum

Range map: Pre-breeding migration

Alder Flycatcher, Range map: Pre-breeding migration
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Data provided by eBird

Alder Flycatcher

Empidonax alnorum

Range: Pre-breeding migration

This map depicts the range boundary, defined as the areas where the species is estimated to occur at a rate of 5% or more for at least one week within the pre-breeding migration season.  Learn more

Occurrence
Pre-breeding migratory season
Season date range
Apr 26 - Jun 14 Learn more